<template>
  <div class="comment">
    <div class="addcomment" v-show="!isFocus">
      <input type="text" placeholder="写跟帖" @focus="handlerFocus" />
      <span class="comment" @click="$router.push({path:'/comment/'+post.id})">
        <i class="iconfont iconpinglun-"></i>
        <em>{{post.comment_length}}</em>
      </span>
      <i class="iconfont iconshoucang" :class="{active:post.has_star}" @click="collectArticle"></i>
      <i class="iconfont iconfenxiang"></i>
    </div>
    <div class="inputcomment" v-show="isFocus">
      <textarea ref="commtext" rows="5"></textarea>
      <div>
        <span @click="sendComment">发 送</span>
        <span @click="cancelComment">取 消</span>
      </div>
    </div>
  </div>
</template>

<script>
import { collectThisArticle,userSendComment } from "@/apis/articles.js";
export default {
  props: {
    post: {
      type: Object,
      required: true,
    },
    currentComment:{
      type: Object
    }
  },
  data() {
    return {
      isFocus: false, // 是否有焦点
    };
  },
  // 监听currentComment的值的变化
  watch:{
    currentComment(newv,oldv){
      console.log(newv,oldv)
      this.isFocus = true
    }
  },
  methods: {
    // 收藏文章
    async collectArticle() {
      let res = await collectThisArticle(this.post.id);
      console.log(res);
      this.post.has_star = !this.post.has_star;
      this.$toast.success(res.data.message);
    },
    // 获取焦点时触发
    handlerFocus() {
      this.isFocus = !this.isFocus;
      // 让文本域聚焦
      setTimeout(() => {
        this.$refs.commtext.focus();
      }, 10);
    },
    // 取消评论
    cancelComment(){
      this.isFocus = false
      this.$refs.commtext.value = ''
    },
    // 发表评论
    async sendComment(e){
      // console.log(this.$refs.commtext.value)
      let data = {
        content:this.$refs.commtext.value
      }
      // 如果是回复评论，我们得拿到当前评论的id
      data.parent_id = this.currentComment.id
      let res = await userSendComment(this.post.id,data)
      console.log(res)
      // 给出提示
      this.$toast.success(res.data.message)
      // 页面评论列表数据的刷新：子组件成功发表了评论，告诉父组件进行评论列表数据的刷新
      this.$emit('refresh',e)
      this.$refs.commtext.value = ''
      this.isFocus = false
    }
  },
};
</script>

<style lang='less' scoped>
.comment{
    width: 100vw;
    position: fixed;
    left: 0;
    bottom: 0;
}
.inputcomment {
  padding: 10px;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  background-color: #fff;
  align-items: flex-end;
  textarea {
    flex: 3;
    background-color: #eee;
    border: none;
    border-radius: 10px;
    padding: 10px;
  }
  div {
    padding: 20px;
  }
  span {
    display: block;
    flex: 1;
    height: 24px;
    line-height: 24px;
    padding: 0 10px;
    background-color: #f00;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    font-size: 13px;
  }
}
.addcomment {
  width: 100%;
  box-sizing: border-box;
  background-color: #fff;
  padding: 10px;
  margin-top: 20px;
  display: flex;
  text-align: center;
  position: absolute;
  bottom: 0;
  left: 0;
  > input {
    flex: 4;
    height: 30px;
    line-height: 30px;
    border-radius: 15px;
    border: none;
    background-color: #eee;
    padding-left: 20px;
    font-size: 14px;
  }
  i {
    font-size: 20px;
    &.active{
      color:red;
    }
  }
  > span {
    flex: 1;
    position: relative;
    > em {
      position: absolute;
      right: 0;
      top: -5px;
      font-size: 10px;
      background-color: #f00;
      color: #fff;
      border-radius: 5px;
      padding: 3px 5px;
    }
  }
  > i {
    flex: 1;
  }
}
</style>